Formula:-CH2-CHCl-n CAS No: 9002-86-2 EINECS No: 208-750-2 Specification Tape: SG1 SG2 SG3 SG4 SG5 SG6 SG7 SG8 K value 77-75 74-73 72-71 70-69 68-66 65-63 62-60 59-55 Viscosity, ml/g 156-144 143-136 135-127 126-119 118-107 106-96 95-87 86-73 Average polymerization 1350-1250 1250-1150 1100-1000 950-850 950-850 750-650 Number of impurity particle≤ 30 30 30 30 30 30 40 40 Volatiles content %,≤ 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 Appearing density g/ml≥ 0.42 0.42 0.42 0.42 0.42 0.45 0.45 0.45 Residual after sieve 0.25mm mesh≤ 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 0.063mm l≥ 90 90 90 90 90 90 90 90 Number of grain/400cm2≤ 40 40 40 40 40 40 40 40 Plasticizer absorbency value of 100g resin 25 25 25 22 19 16 14 14 Whiteness %,≥ 74 74 74 74 74 74 70 70 Residual chlore thylene content mg/kg≤ 5 5 5 5 5 5 5 5 Ethylidene chloride mg/kg≤ 150 150 150 150 150 150 150 150 USD: PVC resin can be abbreviated to PVC,it is a kind of thermoplastic plastic. It is white powder. SG-5 is used in producing transparent products section bar,hard tube and defoil,hard board and welding rod Package: In 25 PP BAG,17MT/20'FCL